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Search / Trial NCT05724316

Effects of Vitamin D on the Behaviours, Mental, and Physical Health of Prisoners

Launched by OXFORD BROOKES UNIVERSITY · Feb 1, 2023

Trial Information

Current as of July 01, 2025

Recruiting

Keywords

Anxiety Depression Behaviour Mental Health Mental Wellbeing Physical Health Bone Health Prisoners

ClinConnect Summary

This clinical trial is studying how vitamin D (VD) supplements can affect the mental and physical health of prisoners. Researchers believe that many prisoners have low levels of vitamin D because they don’t get enough sunlight, which is the main way our bodies produce this vitamin. The study aims to see if taking vitamin D supplements can help improve mood, reduce feelings of anxiety and depression, and strengthen bone health. Participants will be divided into two groups: one that chooses to take the supplements and another that does not.

To join the study, participants must be long-term male residents of the prison, at least 18 years old, and able to understand English. During the trial, which lasts between 3 to 6 months, participants will complete questionnaires about their mental health and keep a food diary to track their diet. They will also provide saliva samples and have tests done to measure their vitamin D levels and bone density. This will help researchers understand if taking vitamin D supplements makes a difference in their health.

Gender

MALE

Eligibility criteria

  • Inclusion Criteria:
  • Long-term Residents (with minimum 1 year)
  • Biological Male adults (+18)
  • Have been residents for minimum of 3 months
  • Understanding of the English language
  • Exclusion Criteria:
  • Short term Residents (\<1 year), residents at end of their sentence
  • Residents with conditions impacting nutrient absorption i.e. Crohn's disease/celiac disease
  • Residents already taking calcitriol (an active form of VD)
  • Any medical condition that would preclude a participant from taking VD supplements
  • Any medical condition which could interfere with VD metabolism

About Oxford Brookes University

Oxford Brookes University is a leading UK institution known for its commitment to innovative research and academic excellence. With a strong emphasis on interdisciplinary collaboration, the university actively engages in various clinical trials aimed at advancing healthcare and improving patient outcomes. Leveraging its research expertise and state-of-the-art facilities, Oxford Brookes University fosters a dynamic environment for the development of novel therapies and interventions, contributing to the broader scientific community while prioritizing ethical standards and participant safety.

Locations

Henley On Thames, , United Kingdom

Patients applied

0 patients applied

Trial Officials

Jonathan Tammam

Principal Investigator

Oxford Brookes University

Timeline

First submit

Trial launched

Trial updated

Estimated completion

Not reported

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